• 제목/요약/키워드: Lamp

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센서 기반의 조명 시설물 관리시스템의 설계 및 구현 (The Design and Implementation of the Lamp Facility Management System based on Sensors)

  • 김동현;조대수;차경환
    • 한국정보통신학회논문지
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    • 제11권7호
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    • pp.1325-1331
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    • 2007
  • 원격지에 위치하고 있는 조명 시설물을 효율적으로 관리하기 위해서는 조명 시설물이 설치된 장소의 상태를 파악해야 한다. 그러나 기존의 네트워크 연결이 없는 동작 센서 기반의 전등은 센서의 정보가 제한적이고 센서 정보를 중앙에 알릴 수 있는 방법이 없기 때문에 효율적인 관리가 어려운 문제점이 있었다. 이 논문에서는 2가지 이상의 센서를 이용하여 조명 시설물의 다양한 상태 정보를 획득하는 관리시스템을 제안한다. 중앙에서 상태 정보를 얻기 위하여 지그비 기반의 무선 네트워크를 사용한다. 이 시스템은 다양한 센서 정보를 제공함으로써 관리자의 의사결정을 신속화할 수 있는 장점을 제공한다.

Development of reverse-transcription loop-mediated isothermal amplification assays for point-of-care testing of human influenza virus subtypes H1N1 and H3N2

  • Ji-Soo Kang;Mi-Ran Seo;Yeun-Jun Chung
    • Genomics & Informatics
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    • 제20권4호
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    • pp.46.1-46.7
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    • 2022
  • Influenza A virus (IAV) is the most widespread pathogen causing human respiratory infections. Although polymerase chain reaction (PCR)-based methods are currently the most commonly used tools for IAV detection, PCR is not ideal for point-of-care testing. In this study, we aimed to develop a more rapid and sensitive method than PCR-based tools to detect IAV using loop-mediated isothermal amplification (LAMP) technology. We designed reverse-transcriptional (RT)-LAMP primers targeting the hemagglutinin gene. RNAs from reference H1N1 and H3N2 showed specific RT-LAMP signals with the designed primers. We optimized the reaction conditions and developed universal reaction conditions for both LAMP assays. Under these conditions, the detection limit was 50 copies for both RT-LAMP assays. There was no non-specific signal to 19 non-IAV respiratory viruses, such as influenza B virus, coronaviruses, and respiratory syncytial viruses. Regarding the reaction time, a positive signal was detected within 25 min after starting the reaction. In conclusion, our RT-LAMP assay has high sensitivity and specificity for the detection of the H1 and H3 subtypes, making it suitable for point-of-care IAV testing.

멸치초망어업용 집어등 광력의 수중 투과특성 (Transmittance Characteristics of Fishing Lamp in the Anchovy Scoop Fishery)

  • 박성욱;배봉성;안희춘;서두옥
    • 수산해양기술연구
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    • 제37권2호
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    • pp.117-123
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    • 2001
  • 멸치초망어업에서는 반사갓에 AC 100V, 1kW 백열등 1개를 끼워서 집어등으로 사용하고 있다. 집어등은 저층에 있는 어군을 표층까지 부상시키고, 또한 표층에 유집된 어군을 자루그물로 유도하는 역할을 수행하고 있다. 본 연구에서는 멸치군을 유효하게 집어, 유도할 수 있는 집어 등을 구명하기 위한 기초연구로서 현재 초망어업에서 사용되고 있는 반사갓의 방사효율과 1kW 백열등의 파장별 방사특성을 계측하였으며, 그 결과를 요약하면 다음과 같다. 1. 반사갓은 백열등의 방사효율을 1.8배 정도 증가시켰으며, 전구를 중심으로 원형에 가깝게 빛을 수중으로 방사시켰고, 이는 수중광도계로 측정한 방사조도와도 잘 일치하였다. 2. 공기중에서 백열등의 방사조도는 994nm의 파장에서 최대치를 보인 반면 심도 0.5m, 1.0m 층에서 최대치를 보인 반면 심도 0.5m, 1.0m층에서는 모두 690nm의 파장에서 최대치를 보였다. 3. 집어등의 연직 하방에 있어서 심도(x)과 수중조도(y)와의 관계식은 다음과 같다. y=146.03e 상(-0.37x) 4. 1kW 백열등의 빛은 정횡방향보다 연직방향쪽으로 많이 투과되었으며, 집어등 직하에서의 빛은 심도 20m이심에는 도달하지 않는다고 추정된다.

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무전극 램프의 전원장치에 대한 기술 동향 (A Review of Power Supply Technology of Electrodeless lamps)

  • 한수빈;박석인;정봉만;장우진;함중걸
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2002년도 학술대회논문집
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    • pp.197-200
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    • 2002
  • This paper reviews electrodeless lamp technology. The lamp has very long life time but very high cost compared to conventional lamps such as fluorescent lamp. For optimizing the overall system in performance and cost power supply as well as lamp is very important. First, the paper describes various electrodeless lamps and its market condition. Then, a lot of circuit technology for constructing the power supply is reviewed and circuit characteristics are discussed

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무전극 형광등 시스템의 성능평가 및 분석 (Performance evaluation and analysis of Electrodeless Fluorescent Lamp System)

  • 김현숙;이세현;신상욱;황명근
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2002년도 학술대회논문집
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    • pp.3-8
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    • 2002
  • In this paper, We measured an electric and optical characteristics for electrodeless fluorescent lamp system. We used the CCD(charged couple device) and Integrating Sphere Photometer to detect the accurate variation of data and got a characteristic of output voltage and current, luminance, luminous flux etc. And then we come to understand that the efficiency of electrodeless fluorescent lamps are similar to CFLs(compact fluorescent lamp) or HID(high intensity discharge lamp).

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Effects of the Xe content on the electro-optical properties in the mercury-free Flat Fluorescent Lamp

  • Chung, Kyu-Yong;Lee, Sang-Mok;Jeong, Yoon-Chul;Sohn, Sang-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1577-1579
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    • 2007
  • Xe content is one of important factors related to characteristics of the mercury-free flat fluorescent lamp. The electro-optical properties of lamp were investigated for wide range of Xe content in Xe-Ne mixing gas. The maximum luminance of $9,289\;cd/m^2$ and efficacy of 3 lm/W was obtained with Xe 90 %.

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Investigation of Turn-off Condition for Reliable Operation of Mercury Vapor Lamp

  • Park, Jun-Sung;Jeong, Sang-Sik;Lee, Seung-Gyu
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1152-1154
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    • 2007
  • The distributions of mercury (Hg) in the bulb of a mercury vapor lamp are significantly affected by its turn-off conditions. Most of mercury should be attached to the electrodes before ignition by a proper turn-off condition. In the present study, the effect of the transient profiles of lamp cooling after turn-off on the distribution of Hg was investigated.

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형광등용직렬 인버터에 관한 연구 (A Study on Series Inverter for a Fluorescent Lamp Load)

  • Park, Min-Ho;Hong, Soon-Chan;Oh, Young-Chul
    • 대한전기학회논문지
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    • 제32권1호
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    • pp.7-12
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    • 1983
  • When emergency lighting using a D.C. source is needed, we select the fluorescent lamp that has higher efficiency than that of an incandescene lamp. This paper deals with a series inverter for a fluorescent lamp load, which has high frequency output characteristics. First, the appropriate operating frequency is determined and second, the optimum value of circuit elements is determined in consideration of several important conditions. The results obtained by experimentations are represented.

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평판형광램프 전기적광학적 특성 연구 (A Study on Electrical and Optical Charateristics of Flat Fluorescent Lamp)

  • 김수용;이오걸
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 하계학술대회 논문집 C
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    • pp.1792-1794
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    • 2001
  • In this paper, the basic characteristics of flat fluorescent lamp using ultraviolet generated from gas discharge and powder type electro luminescent display using a phenomenon of the light emission caused by the electrical field applied to phosphor are studied. The lamp is a simple structure with insulator layer, phosphor layer, and gas gap. Current(displacement current + discharge current) in flat fluorescent lamp using.

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고압 나트륨등 구동용 전자식 안정기 개발 (The Development of Electronic Ballast for HPS Lamp)

  • 서남길;이보희
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 F
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    • pp.2789-2791
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    • 1999
  • This paper deals with the design of the HPS electronic ballast, which consists of the ignitor for turning-up and the resonant converter for driving the lamp. Also it contains Power Factor Controller to improve the electronic efficiencies such as power factor, crest factor, low distortion, etc. To make this circuit, it is necessary to simulate it on the computer before we implement it actually. In this paper, we try to modelize the HPS lamp and ballast, and have experiments with 150 watt-HPS lamp from Kwangjunsa.

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